Dc Connection; Overview Of Dc Connectors; Assembling The Dc Connectors - SMA Sunny Tripower X 12 Operating Manual

SMA Solar Technology AG
14. Ensure that all conductors are correctly connected.
15. Ensure that the conductors sit securely in the terminal points.
16. Tighten the swivel nut on the cable gland hand-tight.
Also see:
• Signal cable requirements ⇒ page 39
• Circuitry overview DI 6 ⇒ page 51
• Pin assignment DI 5-6 ⇒ page 50
• Digital input DI 5-6 ⇒ page 50

6.10 DC connection

6.10.1 Overview of DC connectors

Figure 14: Negative (A) and positive (B) DC connectors

6.10.2 Assembling the DC Connectors

For connection to the inverter, all PV module connection cables must be fitted with the DC
connectors provided. Assemble the DC connectors as described in the following. The procedure is
identical for both connectors (+ and -). The graphics for the procedure are shown for only the
positive connector as an example. Pay attention to the correct polarity when assembling the DC
connectors. The DC connectors are marked with the symbols "+" and "-".
Danger to life due to electric shock when live components or DC cables are
touched
When exposed to light, the PV modules generate high DC voltage which is present in the DC
cables. Touching live DC cables results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Disconnect the product from voltage sources and ensure it cannot be reconnected before
working on the device.
• Do not disconnect the DC connectors under load.
• Wear suitable personal protective equipment for all work on the product.
Operating manual
DANGER
6 Electrical Connection
STPxx-50-BE-en-11 53